A.a(chǎn)re now worried that the earth will become a victim of plastic bags |
B.don’t think they have done enough to popularize plastic bags |
C.have not realized the harm of plastic bags |
D.have succeeded in popularizing the use of plastic bags |
A.plastic bags harm the earth severely |
B.most plastic bags are not made use of |
C.the prices of plastic bags are reasonable |
D.plastic bags are the leading polluter on the earth |
A.How plastic bags are produced. |
B.How plastic bags are used. |
C.How to popularize the use of paper bags. |
D.How to solve the problems caused by plastic bags. |
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A.Asbestos mined in Canada | B.Fireproof matter |
C.A “wonder” mineral | D.A new roofing material |
A.going into roofing business | B.carrying asbestos from Italy |
C.sending a trained scientist | D.showing the use of asbestos gloves |
A.It is like thread. | B.It feels soapy. |
C.It burns easily. | D.It is unusually heavy. |
A.show the need for more scientists |
B.compare asbestos with other minerals |
C.increase the sales of asbestos |
D.present facts about asbestos |
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A.wouldn't harm the fish in the sea |
B.would change the balance of the food chain |
C.would be broken down in the sea |
D.wouldn't do much harm to the sea |
A.most fish and sea animals live at the surface of the seas |
B.it is very difficult to break the balance of a food chain |
C.excessive fishing has caused the decrease in fish stock |
D.it won't be long before the problems concerning oceans will be solved |
A.The use of international agreements. |
B.Forbidding fishing to protect fish stocks. |
C.The use of new techniques. |
D.Raising people's awareness of the need to protect oceans. |
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A.he wanted to prove children are born with ability to speak |
B.he wanted his nurses to say another language |
C.he was unkind to the nurses |
D.he ignored the importance of mothering to the babies |
A.they do not listen carefully to their mothers |
B.their mothers do not respond to their attempts to speak |
C.their brain has to absorb too much language at once |
D.their mothers are not intelligent enough to help them |
A.difficult periods in the child’s life |
B.moments when the child becomes critical towards its mother |
C.important stages in the child’s development |
D.times when mothers often neglect their children |
A.have a high IQ | B.be less intelligent |
C.not necessarily be backward | D.be insensitive to verbal signals |
A.the child will be able to speak properly |
B.the child will continue to give out signals |
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D.the child will make little effort to speak |
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A.if we make the earth unlivable, we’ll have to live in space |
B.it can help our children live better |
C.if we don’t, the earth will become a garbage dump |
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A.be aware of the importance of protecting the environment |
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A.Being eco-conscious means you should know much about the environment. |
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A.Her husband was cured of his cancer. |
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C.friendly creatures and flat seabed |
D.clear water and suitable temperature |
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